Temp directory makes assumption about WSL paths

[vcsjones]

WSL starting in Windows 1803 allows file systems to be mounted in places other than /mnt by configuration.

I've taken to mounting them simply in / so that I can access /c/window-stuff. For example:

[automount]
enabled = true
root = /

The causes the launcher to fail to make a temp directory due to this line:

chrome-launcher/src/utils.ts

Line 88 in dd5fdd4

const userRegExp = /\/mnt\/([a-z])\/Users\/([^\/:]+)\/AppData\//;

It makes an assumption about where the windows file system is mounted.

[vcsjones]

I'm happy to make a pull request to address the issue if anyone has a good idea on how to address this.

[paulirish]

yah would be happy to get a PR for this.